spi: ep93xx: Drop unused variable

My previous patch leaves a dangling variable in the driver.
get rid of it.

Fixes: 06a391b1621e ("spi: ep93xx: Convert to use CS GPIO descriptors")
Reported-by: Stephen Rothwell <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-ep93xx.c

···
 	struct resource *res;
 	int irq;
 	int error;
-	int i;
 
 	info = dev_get_platdata(&pdev->dev);
 	if (!info) {